David M. Gardner - Worcester PA Paul J. McElligott - Abington PA Roger T. Clark - Chester PA
Assignee:
Pennwalt Corporation - Philadelphia PA
International Classification:
C07C 8518
US Classification:
564485
Abstract:
The process for preparing aliphatic and aromatic amines by reacting an olefin with either ammonia, a primary amine, or a secondary amine at elevated temperature in the presence of an ammonium halide catalyst, preferably a catalyst-promoter combination, is disclosed herein.
Purification Of Crude, Liquid Organosulfonyl Chloride
Crude, liquid organosulfonyl chloride is purified by first scrubbing the crude liquid with an aqueous hydrochloric acid solution, separating the scrubbing solution and then subjecting the scrubbed organosulfonyl chloride to vacuum stripping while sweeping the material being stripped with an inert gas.
David M. Gardner - Worcester PA Paul J. McElligott - Abington PA
Assignee:
Pennwalt Corporation - Philadelphia PA
International Classification:
B01J 1912
US Classification:
204158R
Abstract:
Aliphatic, cycloaliphatic, heterocyclic aliphatic and aromatic amines are prepared in a liquid phase reaction under the influence of light energy in the presence of a specified ammonium halide photocatalyst whereby addition of N--H bonds from ammonia or a primary or secondary amine occurs across the double bond of an olefin.
Method For Dewaxing Oil And Gas Pipelines Or Wells
Paul J. McElligott - Abington PA Stanley R. Sandler - Springfield PA John F. Kennoy - Horsham PA William J. Tuszynski - Milford Township, Bucks County PA
Assignee:
Atochem North America, Inc. - Philadelphia PA
International Classification:
E21B 3700 E21B 4325
US Classification:
252 8552
Abstract:
A process for dissolving wax, paraffin and/or sulfur deposits in an oil or gas pipeline or well comprises providing at the site of the deposit an acid and a compound which liberates carbon disulfide upon contact with the acid, whereby the deposit is dissolved by the liberated carbon disulfide.
Name / Title
Company / Classification
Phones & Addresses
Paul Mcelligott Principal
Philadelphia Home Corp Single-Family House Construction